12th Class Mathematics Continuity and Differentiability

  • question_answer 116) If y = (tan–1x)2, show that (x2 + 1)2 y2 + 2x (x2 + 1)y1 = 2 

    Answer:

    y = (tan?1x)2                                           ?.. (1)                            Diff. it w.r.t. x, (1 + x2) y2 + 2xy1 =                   Hence the result.   


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